I would kill for showers at work. Plenty of people bike to work so I don't know why not. They put in a prayer room to accommodate our Muslim employees. (no offense meant, I respect all religions and am proud to work in an environment that is forward thinking) But how about some showers?
I did switch to panniers and it did reduce my back sweat but like I said I am a sweat machine. Those fancy sweat wicking shirts are expensive. but maybe they are worth a try.
I just need to find something water proof and breathable.